If you are using the client version of SPAMfighter and it is not filtering your emails then it might be because you are using IMAP to get your mails which SPAMfighter doesnt support.To check if you use IMAP please follow the guide here

If you are using the client version of SPAMfighter and it is not filtering your emails then it might be because you are using IMAP to get your mails which SPAMfighter doesnt support.To check if you use IMAP please follow the guide here